The effects of neutron radiation shielding were studied by use of a new hydrogel. A simple PVA/PEO hydrogel and the hydrogel containing metal ions were prepared by physical cross-linking method. The effects of hydrogels to 2.45 MeV neutron radiation shielding were theoretically analyzed by SHIELD procedure which is based on Monte Carlo simulation to calculate the neutron transport situation in different hydrogels. The flux counts of 2.45MeV neutron through different thicknesses of hydrogels were measured by a BF,3, neutron detector using a K-400 type high-voltage multiplier. The Monte Carlo simulation results show that neutron flux and energy decrease gradually with increment of hydrogel thickness. Compared with simple group, the neutron flux and energy through the same thickness of group containing metal ions decrease more obviously. The results measured by BF,3, neutron detector show that the percentage change of neutron flux count through 6—10 cm thickness of hydrogel containing metal ions to 2.45 MeV neutron increase significantly compared to simple hydrogel, and it comes to 61.3% at 10 cm thickness of the hydrogel, and its radiation shielding linear equation is ,y,=-4.5103,x, +86.229. It can be concluded that PVA / PEO hydrogel has a better neutron irradiation shielding effect, especially for the PVA / PEO hydrogel containing metal ions.